<?php
class ControllerFeedGoogleSitemap extends Controller {
   public function index() {
		if ($this->config->get('google_sitemap_status')) {
			$output  = '<?xml version="1.0" encoding="UTF-8"?>';
			$output .= '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
		 
			$this->load->model('tool/seo_url');
		 
			$this->load->model('catalog/product');
		 
			$products = $this->model_catalog_product->getProducts();
		 
			foreach ($products as $product) {
				$output .= '<url>';
				$output .= '<loc>' . str_replace('&', '&amp;', $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/product&product_id=' . $product['product_id'])) . '</loc>';
				$output .= '<changefreq>weekly</changefreq>';
				$output .= '<priority>1.0</priority>';
				$output .= '</url>';   
			}
		 
			$this->load->model('catalog/category');
		 
			$categories = $this->model_catalog_category->getCategories();
		 
			$output .= $this->getCategories(0);
		 
			$this->load->model('catalog/manufacturer');
		 
			$manufacturers = $this->model_catalog_manufacturer->getManufacturers();
		 
			foreach ($manufacturers as $manufacturer) {
				$output .= '<url>';
				$output .= '<loc>' . str_replace('&', '&amp;', $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/manufacturer/viewManufacturer&manufacturer_id=' . $manufacturer['manufacturer_id'])) . '</loc>';
				$output .= '<changefreq>weekly</changefreq>';
				$output .= '<priority>0.7</priority>';
				$output .= '</url>';   
				
				$products = $this->model_catalog_product->getProductsByManufacturerId($manufacturer['manufacturer_id']);
				
				foreach ($products as $product) {
				   $output .= '<url>';
				   $output .= '<loc>' . str_replace('&', '&amp;', $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/product&manufacturer_id=' . $manufacturer['manufacturer_id'] . '&product_id=' . $product['product_id'])) . '</loc>';
				   $output .= '<changefreq>weekly</changefreq>';
				   $output .= '<priority>1.0</priority>';
				   $output .= '</url>';   
				}         
			}
		 
			$this->load->model('catalog/information');
		 
			$informations = $this->model_catalog_information->getInformations();
		 
			foreach ($informations as $information) {
				$output .= '<url>';
				$output .= '<loc>' . str_replace('&', '&amp;', $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=information/information&information_id=' . $information['information_id'])) . '</loc>';
				$output .= '<changefreq>weekly</changefreq>';
				$output .= '<priority>0.5</priority>';
				$output .= '</url>';   
			}
		 
			$output .= '</urlset>';
		 
			$this->response->addHeader('Content-Type: application/xml');
			$this->response->setOutput($output);
		}
	}
   
	protected function getCategories($parent_id, $current_path = '') {
		$output = '';

		$results = $this->model_catalog_category->getCategories($parent_id);

		foreach ($results as $result) {
			if (!$current_path) {
				$new_path = $result['category_id'];
			} else {
				$new_path = $current_path . '_' . $result['category_id'];
			}

			$output .= '<url>';
			$output .= '<loc>' . str_replace('&', '&amp;', $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/category&path=' . $new_path)) . '</loc>';
			$output .= '<changefreq>weekly</changefreq>';
			$output .= '<priority>0.7</priority>';
			$output .= '</url>';         

			$products = $this->model_catalog_product->getProductsByCategoryId($result['category_id']);

			foreach ($products as $product) {
				$output .= '<url>';
				$output .= '<loc>' . str_replace('&', '&amp;', $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/product&path=' . $new_path . '&product_id=' . $product['product_id'])) . '</loc>';
				$output .= '<changefreq>weekly</changefreq>';
				$output .= '<priority>1.0</priority>';
				$output .= '</url>';   
			}   

			$output .= $this->getCategories($result['category_id'], $new_path);
		}

		return $output;
	}      
}
?>
